Hey! Thank you so much for the useful post! My head's been spinnin' (as i just discovered i could do this with my phone), and this is great!
Since i want EXT4, i placed the "recovery_ext.rfs" in "I:\sdx\update" and the other two files (kernel 2.7 and FroyoRC2) in "I:\sdx\zip"
My problem came at step 10.5: when i ran "Go to console" and typed in "ext4", i hit enter, but got the script "sh: ext4: not found"
Any clue on how to fix this?
.....and i now realize i kinda failed because i posted my reply to the wrong person. Sorry, i'm new to forums!